參數資料
型號: DS2153Q-A7+T&R
廠商: Maxim Integrated Products
文件頁數: 33/60頁
文件大?。?/td> 0K
描述: IC TXRX E1 1-CHIP 5V 44-PLCC
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 500
功能: 單芯片收發(fā)器
接口: E1
電路數: 1
電源電壓: 4.75 V ~ 5.25 V
電流 - 電源: 65mA
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應商設備封裝: 44-PLCC(16.59x16.59)
包裝: 帶卷 (TR)
DS2153Q
39 of 60
13 LINE INTERFACE FUNCTIONS
The line interface function in the DS2153Q contains three sections: the receiver, which handles clock and
data recovery; the transmitter, which waveshapes and drives the T1 line; and the jitter attenuator. Each of
these three sections is controlled by the Line Interface Control Register (LICR), which is described
below.
LICR: LINE INTERFACE CONTROL REGISTER (Address = 18 Hex)
(MSB)
(LSB)
LB2
LB1
LB0
EGL
JAS
JABDS
DJA
TPD
LICR
SYMBOL POSITION NAME AND DESCRIPTION
LB2
LICR.7
Line Build-Out Select Bit 2. Sets the transmitter build
out; see the Table 13-2.
LB1
LICR.6
Line Build-Out Select Bit 1. Sets the transmitter build
out; see the Table 13-2.
LB0
LICR.5
Line Build-Out Select Bit 0. Sets the transmitter build
out; see the Table 13-2.
EGL
LICR.4
Receive Equalizer Gain Limit.
0 = -12dB
1 = -30dB
JAS
LICR.3
Jitter Attenuator Select.
0 = place the jitter attenuator on the receive side
1 = place the jitter attenuator on the transmit side
JABDS
LICR.2
Jitter Attenuator Buffer Depth Select.
0 = 128 bits
1 = 32 bits (use for delay sensitive applications)
DJA
LICR.1
Disable Jitter Attenuator.
0 = jitter attenuator enabled
1 = jitter attenuator disabled
TPD
LICR.0
Transmit Power Down.
0 = normal transmitter operation
1 = powers down the transmitter and tri-states the TTIP
and TRING pins
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